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v R. P. HAYDEN MEANS FOR DISPENSING SURGICAL PLASTER Filed April 50. 1926 2 Sheets-Sheet 1 snow 1430's Nov. 20, 1928.

R. P. HAYDEN MEANS FOR DISPENSING SURGICAL PLASTER ed April :50, 192 a Sheets-Sheet 2 Patented Nov. 20, 1928.

UNITED STATES PATENT OFFICE.

ROBERT P. HAYDEN, OF HIGHLAND PARK, NEW JERSEY, ASSIGNOR TO JOHNSON & JOHNSON, OF NEW BRUNSWICK, NEW JERSEY, A. CORPORATION OF NEW JERSEY.

MEANS FOR DISPENSING SURGICAL PLASTER.

Application filed April 30, 1926.

It is common practice in hospitals, first aid stations and other institutions, where so called surgical or adhesive plaster is used in large quantities, to cut the length and width of plaster required from bulk stock vhich is generally supplied in roll form of standard width. The objection to this is that in emergency and with the indifferent means at hand it is diliicult to cut the plaster with any degree of precision. To obviate this difficulty it has been proposed to supply a series of spools of differential width, but this in turn suffers the disadvantage that individual spools are expensive aside from the gravity of the circumstance that spools are frequently rewound with inferior stock.

One object of my invention is to provide a package of surgical plaster composed of units of variable width permanently secured on a common core in such way as to dispense with spools and to minimize the hazard and annoyance of substitution or replacement.

Another object is to provide a novel form of reel or holder for cooperation with the package.

The nature, characteristic features and scope of the invention will more readily be understood from the following description taken in connection with the accompanying drawings forming a part hereof, wherein, V

Figure 1 is an elevational view of a reel or holder equipped with a roll assembly cm liiodying my improvements.

Fig. 2 is a perspective view of the roll units in permanently locked or assembled relation.

Fig. 3 is a similar view with the units in spaced relation to disclose the common core.

Fig. 4; is a. sectional view showing a modification of the roll unit end locking means and also illustrating details of the holder.

Fig. 5 is a sectional-elevational view of the sh ning chuck of the holder.

F 6 is a perspective View of the same.

Fig. 7 is a transverse section of the spindle or mandrel. the main core, and an end core, with the relative interlock of the cores.

According to my invention, the adhesive plaster in selective widths is wound on centers or individual cores which may be metal tubes 5 with longitudinally butt joined or lapped edges. The several units are assembled on a common core 6 and after the application of headers or end plates 7, the ends of the core 6 are expanded or swaged, as at Serial No. 105,749.

8, the effect of which is to permanently lock the assemblage and to provide an original package, refill or spare. Aside from the factor of low price as compared with a similar assembly of regular spools, the arrangement has the distinct merit that it obviates the hazard of substitution of inferior or at any rate competitive stock.

The roll or package of permanently assembled units is applied to a mandrel or spindle 9 mounted for rotation in a pair of brackets 10 carried by a base 11.

As a. further measure of precaution against substitution or replacement, the details of the roll holder are as indicated in Fig. 4. In that construction a special spindle or mandrel 12 cooperates with a centering chuck 13 and with a snap chuck 14. The latter embodies spring elements 15 anchored as at 16 and having downwardly opening reverse jaws 17 which engage the circumferential groove 18 of the mandrel.

Instead of expanding or swaging the ends of the common core or center to permanently secure the units I may interlock the end cores and common core by radial spurs 19, formed by simultaneously expanding the core elements as by means of a punch.

It will be understood that there is suificient friction between the individual cores and the common core. to prevent relative rotation, and when the lap joints 20 and 21 are present, they constitute positive means to prevent relative rotation.

Instead of applying the respective end plates or headers as separate elements. they may initially be secured to the individual cores, as indicated at 22.

Having described my invention, I claim,

A hospital appliance, comprising a base having uprights whereof one is provided with a center point and whereof the other is formed with a. downwardly opening slot. spring elements mounted therein to form downwardly opening reverse aws, and a mandrel having one end adapted to said point and having its other end formed with a peripheral groove whereby it may be snapped into or out of place with relation to said spring jaws, said mandrel operating as a carrier for a factory tilled plaster core.

In testimony whereof I affix my signature.

ROBERT P. HAYDEN. 

